body {
  color: #555;
}

#carousel {
  background: #e7e7e7;
  //margin-top: 6rem;
  margin-bottom: 1rem;
}

.carousel-indicators li {
  background-color: #444;
}

.carousel-control-prev-icon {
  background-image: url(img/left.png);
}

.carousel-control-next-icon {
  background-image: url(img/right.png);
}

.tab5 {
  background: #eee;
}

//.index {
//  text-align: center;
//  letter-spacing: 1px;
//}

//.index-h2 {
//  font-size: calc(1rem + 1vw);
//  color: #0059b2;
//}

//.index-p{
//  font-size: calc(0.7rem + 0.8vw);
//  color: #999;
//}

.index-content {
  h5 {
    font-size: calc(1.2rem + 0.09vw);
  }

  p {
    font-size: calc(0.9rem + 0.1vw);
  }
}


//section>article:first-child>:nth-child(-n+2){
//  text-align: center;
//  letter-spacing: 1px;
//}
//
//section>article:first-child>h2{
//  font-size: calc(1rem + 1vw);
//  color: #0059b2;
//  &+p{
//    font-size: calc(0.7rem + 0.8vw);
//    color: #999;
//  }
//}

section > article {
  /*前两个*/

  &:first-child > :nth-child(-n+2) {
    text-align: center;
    letter-spacing: 1px;
  }

  /*h2的第一个*/

  &:first-child > h2:nth-of-type(1) {
    font-size: calc(1rem + 1vw);
    color: #0059b2;
  }

  /*p的第一个*/

  &:first-child > p:nth-of-type(1) {
    font-size: calc(0.7rem + 0.8vw);
    color: #999;
  }
}

.tab5 h3, .tab6 h3 {
  font-size: calc(1.2rem + 0.8vw);
}

.tab5 p, .tab6 p {
  font-size: calc(0.9rem + 0.1vw);
}

footer{
  font-size: calc(0.9rem + 0.1vw);
}